/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package ru.miit.elearning.servlets;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.Calendar;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.hibernate.Session;
import ru.miit.elearning.hibernate.dao.CurriculumDAO;
import ru.miit.elearning.hibernate.dao.HibernateUtil;

/**
 *
 * @author Cyclone
 */
public class CompleteCourseServlet extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();

        Session session = null;

        try {

            int courseId = Integer.parseInt(request.getParameter("courseId"));

            session = HibernateUtil.getSessionFactory().getCurrentSession();
            session.beginTransaction().begin();

            CurriculumDAO curriculumDAO = new CurriculumDAO(session);

            int userId = curriculumDAO.findUserIdByLogin(request.getRemoteUser());

            //System.out.println(userId);

            curriculumDAO.completeCourse(userId, courseId);
            session.getTransaction().commit();

            Calendar cal = Calendar.getInstance();

            out.print("Выполнено "
                    +cal.get(Calendar.YEAR)+"."
                    +(cal.get(Calendar.MONTH)+1)+"."
                    +cal.get(Calendar.DATE)+" - "
                    +cal.get(Calendar.HOUR_OF_DAY)+":"
                    +cal.get(Calendar.MINUTE)
                    );

        } catch(Exception e) {
            if(session != null && session.isConnected()) {
                session.getTransaction().rollback();
            }

            e.printStackTrace();

        } finally {
            out.close();
            if(session != null && session.isConnected()) {
                session.close();
            }
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
